Temperature for September 1963
In September 1963 the average high temperature in Seattle, WA was 75.2°F, and this was 3.7°F warmer than the average of 71.5°F. The hottest day in September 1963 was 9 September when the temperature reached 89.4°F. Overnight the average temperature in September is 51.3°F and in 1963 the average overnight temperature was 2.5°F warmer at 53.9°F.